"Group exercise improves quality of life, reduces stress far more than individual work outs Group..."

“Group exercise improves quality of life, reduces stress far more than individual work outs Group exercise improves quality of life, reduces stress far more than individual work outs”

- https://www.sciencedaily.com/releases/2017/10/171030092917.htm

source http://physiquesportsuk.tumblr.com/post/166950691554